Step-by-step explanation:
Leila has scored 33, 28, 24 and points in her three basketball games so far. How many points does she need to score in her next
game so that her average (mean) is 27 points per game?
1 answer:
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Answer:
x=0, x=3, x=5
Step-by-step explanation:
Simplify <span>-28x-28+4−28x−28+4</span> to <span>-28x-24<span>−28x−2<span>4
</span></span></span> Add <span>28x28x</span> to both sides<span>39−7x+28x=−24Simplify <span>39-7x+28x39−7x+28x</span> to <span>39+21x<span>39+21<span>x
</span></span></span><span>39+21x=−24Subtract 39<span> from both sides
</span><span>21x=−24−39Simplify <span>-24-39−24−39</span> to <span>−6<span>3
</span></span><span>21x=−63Divide both sides by <span>21
</span>x=−
Simplify tex] \frac{63}{21} [/tex] to 3
<span>x=−3
</span>
</span></span></span></span>
</span></span></span> Add <span>28x28x</span> to both sides<span>39−7x+28x=−24Simplify <span>39-7x+28x39−7x+28x</span> to <span>39+21x<span>39+21<span>x
</span></span></span><span>39+21x=−24Subtract 39<span> from both sides
</span><span>21x=−24−39Simplify <span>-24-39−24−39</span> to <span>−6<span>3
</span></span><span>21x=−63Divide both sides by <span>21
</span>x=−
Simplify tex] \frac{63}{21} [/tex] to 3
<span>x=−3
</span>
</span></span></span></span>